Parameter
is/HTTP/virt_host_x (where x is a number between 0 and 9)
Short text
Definition of virtual server for HTTP
Parameter Description
Parameters is/HTTP/virt_host_0 to is/HTTP_virt_host_9 define the mapping of hosts and services used to address an HTTP request on a “virtual host”. In turn, the virtual host controls request handler searches (see transaction SICF).
When maintaining these parameters, make sure that there are no “gaps”. Otherwise, subsequent parameters will be ignored. If the parameters ../virt_host_0 to ../virt_host_5 and the parameter ../virt_host_7 have been maintained, for example, then ../virt_host_7 will be ignored.
The definition of the virtual host begins with the highest maintained parameter, continuing downwards. If, for example, you have maintained the parameters ../virt_host_0 to ../virt_host_5, ../virt_host_5 is evaluated first. If this parameter applies, it is used to define the request handler. If not, the evaluation continues with ../virt_host_4, and so on to ../virt_host_0.
Parameter is/HTTP/virt_host_0 sets the default host (see transaction SICF).
Application Area
System
Parameter Unit
Character string
Default Value
DEFAULT_HOST is always used.
Who is permitted to make changes?
Customer
Operating System Restrictions
None
Database System Restrictions
None
OTHER_PARAMETER
is/SMTP/virt_host_0
Values allowed
The parameters must fulfill the following syntax:
is/HTTP/virt_host_n = [Host_1]:[Service_11], .. [Service_1n]; .. [Host_2]:[Service_21], .. [Service_2m];
[Host_x] and [Service_yz] can contain the wildcards ‘*’ and ‘?’.
‘*’ can stand for any substrings, ‘?’ to any character.
Examples
is/HTTP/virt_host_0 = host1*:8080,9090; host2:8080;
is/HTTP_virt_host_1 = host3*:808?; host4:8080,9090;
The requests below are assigned to the following servers:
(host1.wdf.sap-ag.de, 8080) –> virt_host_0 (DEFAULT_HOST)
(host2, 8080) –> virt_host_0 (DEFAULT_HOST)
(host3.sfo.sap-ag.de,8081) –> virt_host_1
(host4,9090) –> virt_host_1
(host5,9090) –> no assignment possible
(host4,9090) –> virt_host_1
(host5,9090) –> no assignment possible
